%0 Journal Article %A Paweł Głowacki %T A calculus of symbols and convolution semigroups on the Heisenberg group %J Studia Mathematica %D 1982 %P 291-321 %V 72 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-72-3-291-321/ %R 10.4064/sm-72-3-291-321 %G en %F 10_4064_sm_72_3_291_321